diff options
Diffstat (limited to 'modules/indic/indic-lang.c')
| -rw-r--r-- | modules/indic/indic-lang.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/modules/indic/indic-lang.c b/modules/indic/indic-lang.c index a3915208..dc01b6fe 100644 --- a/modules/indic/indic-lang.c +++ b/modules/indic/indic-lang.c @@ -34,6 +34,73 @@ typedef PangoEngineLangClass IndicEngineLangClass; #define INDIC_ENGINE_INFO(script) \ {#script ENGINE_SUFFIX, PANGO_ENGINE_TYPE_LANG, RENDER_TYPE, script##_scripts, G_N_ELEMENTS(script##_scripts)} +#define DEV_RRA 0x0931 /* 0930 + 093c */ +#define DEV_QA 0x0958 /* 0915 + 093c */ +#define DEV_YA 0x095F /* 092f + 003c */ +#define DEV_KHHA 0x0959 +#define DEV_GHHA 0x095A +#define DEV_ZA 0x095B +#define DEV_DDDHA 0x095C +#define DEV_RHA 0x095D +#define DEV_FA 0x095E +#define DEV_YYA 0x095F + +/* Bengali */ +/* for split matras in all brahmi based script */ +#define BENGALI_SIGN_O 0x09CB /* 09c7 + 09be */ +#define BENGALI_SIGN_AU 0x09CC /* 09c7 + 09d7 */ +#define BENGALI_RRA 0x09DC +#define BENGALI_RHA 0x09DD +#define BENGALI_YYA 0x09DF + +/* Gurumukhi */ +#define GURUMUKHI_LLA 0x0A33 +#define GURUMUKHI_SHA 0x0A36 +#define GURUMUKHI_KHHA 0x0A59 +#define GURUMUKHI_GHHA 0x0A5A +#define GURUMUKHI_ZA 0x0A5B +#define GURUMUKHI_RRA 0x0A5C +#define GURUMUKHI_FA 0x0A5E + +/* Oriya */ +#define ORIYA_AI 0x0B48 +#define ORIYA_O 0x0B4B +#define ORIYA_AU 0x0B4C + +/* Telugu */ +#define TELUGU_EE 0x0C47 +#define TELUGU_AI 0x0C48 + +/* Tamil */ +#define TAMIL_O 0x0BCA +#define TAMIL_OO 0x0BCB +#define TAMIL_AU 0x0BCC + +/* Kannada */ +#define KNDA_EE 0x0CC7 +#define KNDA_AI 0x0CC8 +#define KNDA_O 0x0CCA +#define KNDA_OO 0x0CCB + +/* Malayalam */ +#define MLYM_O 0x0D4A +#define MLYM_OO 0x0D4B +#define MLYM_AU 0x0D4C + +#define IS_COMPOSITE_WITH_BRAHMI_NUKTA(c) ( \ + (c >= BENGALI_RRA && c <= BENGALI_YYA) || \ + (c >= DEV_QA && c <= DEV_YA) || (c == DEV_RRA) || (c >= DEV_KHHA && c <= DEV_YYA) || \ + (c >= KNDA_EE && c <= KNDA_AI) ||(c >= KNDA_O && c <= KNDA_OO) || \ + (c == TAMIL_O) || (c == TAMIL_OO) || (c == TAMIL_AU) || \ + (c == TELUGU_EE) || (c == TELUGU_AI) || \ + (c == ORIYA_AI) || (c == ORIYA_O) || (c == ORIYA_AU) || \ + (c >= GURUMUKHI_KHHA && c <= GURUMUKHI_RRA) || (c == GURUMUKHI_FA)|| (c == GURUMUKHI_LLA)|| (c == GURUMUKHI_SHA) || \ + FALSE) +#define IS_SPLIT_MATRA_BRAHMI(c) ( \ + (c == BENGALI_SIGN_O) || (c == BENGALI_SIGN_AU) || \ + (c >= MLYM_O && c <= MLYM_AU) || \ + FALSE) + static PangoEngineScriptInfo deva_scripts[] = { { PANGO_SCRIPT_DEVANAGARI, "*" } @@ -110,6 +177,12 @@ indic_engine_break (PangoEngineLang *engine G_GNUC_UNUSED, { this_wc = g_utf8_get_char (p); next = g_utf8_next_char (p); + + if (G_UNLIKELY ( + IS_COMPOSITE_WITH_BRAHMI_NUKTA(this_wc) || IS_SPLIT_MATRA_BRAHMI(this_wc))) { + attrs[i+1].backspace_deletes_character = FALSE; + } + if (next != NULL && next < (text + length)) { next_wc = g_utf8_get_char (next); |